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PDF CXA2509 Data sheet ( Hoja de datos )
| Número de pieza | CXA2509 | |
| Descripción | Playback Equalizer Amplifier with Music Sensor | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA2509AQ
Playback Equalizer Amplifier with Music Sensor
Description
The CXA2509AQ is an IC designed for use in car
stereo cassette decks. Functions include playback
equalizer amplifier and music sensor into a single
chip.
40 pin QFP (Plastic)
Features
• Few external parts
• Small package (40-pin QFP)
• Same pin configuration as for the Dolby B-C type
NR system (CXA2511AQ) and Dolby B type NR
system (CXA2510AQ)
• Playback equalizer amplifier and music sensor into
a single chip
• FORWARD/REVERSE head select switch
• Two-system (TAPE/AUX) input select switch
• Music signal interval detection level can be set by
the external resistors/capacitors (2 modes).
• High-frequency cut-off of the music sensor circuit
can be adjusted by the external capacitance.
Applications
• Car stereo cassette decks
• Playback-only cassette decks
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
• Supply voltage
VCC
• Operating temperature Topr
• Storage temperature Tstg
• Power dissipation
PD
12
–40 to +85
–65 to +150
430
V
°C
°C
mW
Operating Condition
Supply voltage
VCC
7.8 to 11
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E96826-PS
1 page  
CXA2509AQ
Pin
No.
Symbol
17 INSW
18 TAPESW
19 DRSW
Typical pin voltage
DC AC
I/O
I/O
resistance
0.0V
when
open
17
— I 100kΩ 18
19
Equivalent circuit
Description
Line amplifier input
Vcc select control
Low (open): TAPEIN
High: AUXIN
Playback equalizer
1.1k amplifier control
Low (open): 120µs
100k High: 70µs
DGND
GND
Head select control
Low (open):
FORWARD
High: REVERSE
Vcc
20 MSMODE
0.0V
when
open
1.1k
— I 100kΩ 20
100k
Music sensor
mode control
Low (open): G1
High : G2
DGND
GND
21 MSSW
0.0V
when
open
1.1k
— I 100kΩ 21
100k
Vcc
Music sensor
control
Low (open): MS ON
High: MS OFF
DGND
GND
–5–
5 Page 
Application Circuit 1
CXA2509AQ
R12 R14
300k 33k
C7
0.01µ
R9
18k
R11
12k
GND
AUXIN2 LINEOUT2
GND
C10 C12 R15 C15 C17
2.2µ 2.2µ 20k 2.2µ 0.1µ
RVS2
FWD2
FWD1
RVS1
30 29 28 27 26 25 24 23 22 21
C4 R6
470p 180
R4
100k
C3 R3
470p 100k
GND
GND
C5
22µ
C2 R2
470p 100k
R1
100k
C1 R5
470p 180
PBFB2
31
PBRIN2
32
PBREF2
33
PBFIN2
34
VCT
35
PBGND
36
PBFIN1
37
PBREF1
38
PBRIN1
39
PBFB1
40
120µ/70µ
F2
VCT
F1
T2
×1
NR BIAS
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
LPF
× 1 T1
F3
120µ/70µ
24dB
MSMODE
20
MS MODE
DRSW
19
TAPESW
18
INSW
17
NC
16
NC
15
MS ON/
OFF
R19
MSOUT 100k
DET
14
DGND
13
MSTC
12
C18
0.1µ
24dB
G1FB
11
R18
1MEG
1 2 3 4 5 6 7 8 9 10
From
Microcomputer
DVCC
To Microcomputer
DGND
GND
R8
18k
C6
0.01µ
R10
12k
R7 R13
300k 33k
C9 C11 C13 C14
2.2µ 2.2µ 0.001µ 2.2µ
GND
AUXIN1 LINEOUT1
VCC C8
22µ
GND
R16 R17
3.9k 39k
C16 C17
0.47µ 4.7n
GND
GND
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
– 11 –
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet CXA2509.PDF ] | |
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